Java tutorial
/* * Copyright (C) 2016 Adam Huang <poisondog@gmail.com> * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package poisondog.demo; import poisondog.vfs.FileFactory; import poisondog.vfs.IData; import org.apache.commons.io.IOUtils; import java.util.HashSet; /** * @author Adam Huang <poisondog@gmail.com> * @since 2016-10-07 */ public class FileDemo { public static void main(String[] args) { try { IData data = (IData) FileFactory.getFile("/home/poisondog/Downloads/temp.txt"); HashSet<String> all = new HashSet<String>(); for (String line : IOUtils.readLines(data.getInputStream(), "utf8")) { all.add(line); } IData to = (IData) FileFactory.getFile("/home/poisondog/Downloads/result.txt"); IOUtils.writeLines(all, null, to.getOutputStream(), "utf8"); } catch (Exception e) { e.printStackTrace(); } } }